diff options
Diffstat (limited to 'sys/powerpc/booke/copyinout.c')
| -rw-r--r-- | sys/powerpc/booke/copyinout.c | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/sys/powerpc/booke/copyinout.c b/sys/powerpc/booke/copyinout.c deleted file mode 100644 index 011b8bd..0000000 --- a/sys/powerpc/booke/copyinout.c +++ /dev/null @@ -1,315 +0,0 @@ -/*- - * Copyright (C) 2002 Benno Rice - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ -/*- - * Copyright (C) 1993 Wolfgang Solfrank. - * Copyright (C) 1993 TooLs GmbH. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by TooLs GmbH. - * 4. The name of TooLs GmbH may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/proc.h> - -#include <vm/vm.h> -#include <vm/pmap.h> -#include <vm/vm_map.h> - -#include <machine/pcb.h> -#include <machine/vmparam.h> - - -int setfault(faultbuf); /* defined in locore.S */ - -static int -is_uaddr(const void *addr) -{ - int rv = ((vm_offset_t)addr <= VM_MAXUSER_ADDRESS) ? 1 : 0; - - return rv; -} - -int -copyout(const void *kaddr, void *udaddr, size_t len) -{ - struct thread *td; - faultbuf env; - - if (!is_uaddr(udaddr)) - return (EFAULT); - - td = curthread; - - if (setfault(env)) { - td->td_pcb->pcb_onfault = NULL; - return (EFAULT); - } - - bcopy(kaddr, udaddr, len); - - td->td_pcb->pcb_onfault = NULL; - return (0); -} - -int -copyin(const void *udaddr, void *kaddr, size_t len) -{ - struct thread *td; - faultbuf env; - - if (!is_uaddr(udaddr) || is_uaddr(kaddr)) - return (EFAULT); - - td = curthread; - - if (setfault(env)) { - td->td_pcb->pcb_onfault = NULL; - return (EFAULT); - } - - bcopy(udaddr, kaddr, len); - - td->td_pcb->pcb_onfault = NULL; - return (0); -} - -int -copyinstr(const void *udaddr, void *kaddr, size_t len, size_t *done) -{ - struct thread *td; - faultbuf env; - const char *up; - char *kp; - size_t l; - int rv, c; - - if (!is_uaddr(udaddr) || is_uaddr(kaddr)) - return (EFAULT); - - td = curthread; - - if (setfault(env)) { - td->td_pcb->pcb_onfault = NULL; - return (EFAULT); - } - - kp = kaddr; - up = udaddr; - - rv = ENAMETOOLONG; - - for (l = 0; len-- > 0; l++) { - - c = *up++; - - if (!(*kp++ = c)) { - l++; - rv = 0; - break; - } - } - - if (done != NULL) { - *done = l; - } - - td->td_pcb->pcb_onfault = NULL; - return (rv); -} - -int -subyte(void *addr, int byte) -{ - struct thread *td; - faultbuf env; - - if (!is_uaddr(addr)) - return (EFAULT); - - td = curthread; - - if (setfault(env)) { - td->td_pcb->pcb_onfault = NULL; - return (EFAULT); - } - - *(char *)addr = (char)byte; - - td->td_pcb->pcb_onfault = NULL; - return (0); -} - -int -suword(void *addr, long word) -{ - struct thread *td; - faultbuf env; - - if (!is_uaddr(addr)) - return (EFAULT); - - td = curthread; - - if (setfault(env)) { - td->td_pcb->pcb_onfault = NULL; - return (EFAULT); - } - - *(long *)addr = word; - - td->td_pcb->pcb_onfault = NULL; - return (0); -} - -int -suword32(void *addr, int32_t word) -{ - - return (suword(addr, (long)word)); -} - - -int -fubyte(const void *addr) -{ - struct thread *td; - faultbuf env; - int val; - - if (!is_uaddr(addr)) - return (EFAULT); - - td = curthread; - - if (setfault(env)) { - td->td_pcb->pcb_onfault = NULL; - return (EFAULT); - } - - val = *(const u_char *)addr; - - td->td_pcb->pcb_onfault = NULL; - return (val); -} - -long -fuword(const void *addr) -{ - struct thread *td; - faultbuf env; - long val; - - if (!is_uaddr(addr)) - return (EFAULT); - - td = curthread; - - if (setfault(env)) { - td->td_pcb->pcb_onfault = NULL; - return (EFAULT); - } - - val = *(const long *)addr; - - td->td_pcb->pcb_onfault = NULL; - return (val); -} - -int32_t -fuword32(const void *addr) -{ - - return ((int32_t)fuword(addr)); -} - -uint32_t -casuword32(volatile uint32_t *base, uint32_t oldval, uint32_t newval) -{ - - return (casuword((volatile u_long *)base, oldval, newval)); -} - -u_long -casuword(volatile u_long *addr, u_long old, u_long new) -{ - struct thread *td; - faultbuf env; - u_long val; - - if (!((vm_offset_t)addr <= VM_MAXUSER_ADDRESS)) - return (EFAULT); - - td = curthread; - - if (setfault(env)) { - td->td_pcb->pcb_onfault = NULL; - return (EFAULT); - } - - __asm __volatile ( - "1:\tlwarx %0, 0, %2\n\t" /* load old value */ - "cmplw %3, %0\n\t" /* compare */ - "bne 2f\n\t" /* exit if not equal */ - "stwcx. %4, 0, %2\n\t" /* attempt to store */ - "bne- 1b\n\t" /* spin if failed */ - "b 3f\n\t" /* we've succeeded */ - "2:\n\t" - "stwcx. %0, 0, %2\n\t" /* clear reservation (74xx) */ - "3:\n\t" - : "=&r" (val), "=m" (*addr) - : "r" (addr), "r" (old), "r" (new), "m" (*addr) - : "cc", "memory"); - - td->td_pcb->pcb_onfault = NULL; - - return (val); -} |
